50278865 has 16 divisors (see below), whose sum is σ = 74258688. Its totient is φ = 31824576.

The previous prime is 50278853. The next prime is 50278867. The reversal of 50278865 is 56887205.

It is not a de Polignac number, because 50278865 - 2²² = 46084561 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (50278867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54797 + ... + 55706.

It is an arithmetic number, because the mean of its divisors is an integer number (4641168).

Almost surely, 2^50278865 is an apocalyptic number.

It is an amenable number.

50278865 is a deficient number, since it is larger than the sum of its proper divisors (23979823).

50278865 is a wasteful number, since it uses less digits than its factorization.

50278865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110528.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 50278865 is about 7090.7591272021. The cubic root of 50278865 is about 369.0867787962.

The spelling of 50278865 in words is "fifty million, two hundred seventy-eight thousand, eight hundred sixty-five".